package com.atguigu.gulimall.ssoserver.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletResponse;
import java.util.UUID;

/**
 * @program: gulimall
 * @description:
 * @author: 江天赐
 * @create: 2022-08-13 17:07
 */
@Controller
public class LoginController {
    @Autowired
    StringRedisTemplate stringRedisTemplate;


    @ResponseBody
    @GetMapping("userInfo")
    public String userInfo(@RequestParam("token") String token) {
        String s = stringRedisTemplate.opsForValue().get(token);
        return s;
    }

    @GetMapping("/login.html")

    public String loginPage(@RequestParam("redirect_url") String url,
                            Model model,
                            @CookieValue(value = "sso_token", required = false) String sso_token) {
        if (!StringUtils.isEmpty(sso_token)) {
            //说明之前有人登录过了
            return "redirect:" + url + "?token=" + sso_token;
        }
        model.addAttribute("url", url);
        return "login";
    }

    @PostMapping("/doLogin")
    public String doLogin(@RequestParam("username") String username,
                          @RequestParam("password") String password,
                          @RequestParam("url") String url,
                          HttpServletResponse response) {
        if (!StringUtils.isEmpty(username) && !StringUtils.isEmpty(password)) {
            //登录成功跳转到之前页面
            String uuid = UUID.randomUUID().toString().replace("-", "");
            stringRedisTemplate.opsForValue().set(uuid, username);
            Cookie cookie = new Cookie("sso_token", uuid);
            response.addCookie(cookie);
            return "redirect:" + url + "?token=" + uuid;
        }
        return "login";
    }
}
